PIC16F874-20/L Microchip Technology, PIC16F874-20/L Datasheet - Page 210
![IC MCU FLASH 4KX14 EE 44PLCC](/photos/6/63/66325/150-44-plcc_sml.jpg)
PIC16F874-20/L
Manufacturer Part Number
PIC16F874-20/L
Description
IC MCU FLASH 4KX14 EE 44PLCC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F873-04SO.pdf
(218 pages)
4.PIC16F873-04SO.pdf
(5 pages)
5.PIC16F873-04SO.pdf
(5 pages)
Specifications of PIC16F874-20/L
Core Size
8-Bit
Program Memory Size
7KB (4K x 14)
Core Processor
PIC
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Program Memory Type
FLASH
Eeprom Size
128 x 8
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
44-PLCC
Controller Family/series
PIC16F
No. Of I/o's
33
Eeprom Memory Size
128Byte
Ram Memory Size
192Byte
Cpu Speed
20MHz
No. Of Timers
3
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
192 B
Interface Type
MSSP, PSP, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
33
Number Of Timers
3
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163022, DV164120
Minimum Operating Temperature
0 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164309 - MODULE SKT FOR PM3 44PLCC444-1001 - DEMO BOARD FOR PICMICRO MCUDVA16XL441 - ADAPTER DEVICE ICE 44PLCC309-1040 - ADAPTER 44-PLCC ZIF TO 40-DIP309-1039 - ADAPTER 44-PLCC TO 40-DIPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F874-20/L
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F873-04SO PDF datasheet #3
- PIC16F873-04SO PDF datasheet #4
- PIC16F873-04SO PDF datasheet #5
- Current page: 210 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
14.5
DS31014A-page 14-8
PWM Mode
In Pulse Width Modulation (PWM) mode, the CCPx pin produces up to a 10-bit resolution PWM
output. Since the CCPx pin is multiplexed with the PORT data latch, the corresponding TRIS bit
must be cleared to make the CCPx pin an output.
Figure 14-3
For a step by step procedure on how to set up the CCP module for PWM operation, see Subsec-
tion
Figure 14-3: Simplified PWM Block Diagram
A PWM output
cycle). The frequency of the PWM is the inverse of the period (1/period).
Figure 14-4: PWM Output
Note:
14.5.3 “Set-up for PWM Operation.”
Note 1:
Timer2 Module
CCP Module
Clearing the CCPxCON register will force the CCPx PWM output latch to the default
low level. This is not the port I/O data latch.
shows a simplified block diagram of the CCP module in PWM mode.
(Figure
8-bit timer is concatenated with 2-bit internal Q clock or 2 bits of the prescaler to
create 10-bit time-base.
CCPRxH (Slave)
(DCxB9:DCxB2)
Comparator
CCPRxL
14-4) has a time-base (period) and a time that the output stays high (duty
Duty cycle registers
PR2
TMR2
Comparator
8
8
10
TMR2 = PR2 + 1, TMR2 forced to 0h
10
10
Duty Cycle =
DCxB9:DCxB0
(Note 1)
Period = PR2 + 1
Clear Timer, CCPx pin
and latch the Duty Cycle
TMR2 = Duty Cycle
CCPxCON<5:4>
(DCxB1:DCxB0)
TMR2 = PR2 + 1, TMR2 forced to 0h
R
S
Q
TRIS<y>
1997 Microchip Technology Inc.
CCPx
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